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Finding the Fourth Proportional to 65,831.04, 98,960.42 and 52,825.68

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Solution

The fourth proportional to 65,831.04, 98,960.42 and 52,825.68 is: 79,410.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,831.04 : 98,960.42 = 52,825.68 : x
  2. Step 2: Convert to fraction form
    65,831.04/98,960.42 = 52,825.68/x
  3. Step 3: Cross multiply
    65,831.04x = 98,960.42 × 52,825.68
  4. Step 4: Simplify right side
    65,831.04x = 5,227,651,479.59
  5. Step 5: Solve for x
    x = 5,227,651,479.59/65,831.04
  6. Step 6: Final answer
    x = 79,410.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.